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  Ultralow Noise 15mm × 15mm × 2.8mm uModule Step-Down Regulators Meet the Class B of CISPR 22 and Yield High Efficiency at up to 36VIN &mdash LT Journal
  PDF, 1.4 Mb, File published: Jan 1, 2009
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  L DESIGN FEATURES Ultralow Noise 15mm ×15mm × 2.8mm
  ВµModule Step-Down Regulators Meet
  the Class B of CISPR 22 and Yield
  High Efficiency at up to 36VIN by Judy Sun, Jian Yin, Sam Young and Henry Zhang Introduction
  Power supply designers face many
  tradeoffs. Need high efficiency, large
  conversion ratios, high power and
  good thermal performance? Choose a
  switching regulator. Need low noise?
  Choose a linear regulator. Need it
  all? Compromise. One compromise
  is to follow a switcher with a linear
  regulator (or regulators). Although this
  cleans up the output noise relative to
  a switcher-only solution, a good portion of the conducted and radiated
  EMI remains—even if ferrite beads,
  ПЂ filters, and LC filters are used. The
  problem can always be traced back to
  the switcher, where fast dI/dt transitions and high switching frequencies These ВµModule step-down
  regulators are designed
  to achieve both high
  power density and meet
  EMC (electromagnetic …

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Manufacturer's Classification

• µModule Solutions > µModule Regulators > µModule Buck Regulators | Extended Temperature (H & MP) µModule Regulators
• Power Management > Switching Regulator > Ultralow Noise Regulators

Other Names:

LTM4612IVPBF, LTM4612IV PBF